Ruling on the animal slaughtered by someone who abandons Salah out of laziness

Q 9: One of our relatives performs Salah (Prayer) whenever he visits us though at some other times he misses Salah but says that he makes it up. Nevertheless, when this relative slaughters an animal, some of his friends abstain from eating from its meat, claiming that it is not permissible. Our relative consequently got angry with them, and the two sides became alienated from each other. Our relative exclaims, "Animals which are slaughtered by the Jews are Halal (lawful), how come then you consider the animals that I slaughter Haram (prohibited) while I perform Salah, observe Sawm (Fast), and do not deny any of the obligations of Islam?" Our question is: Is it permissible to eat from the animals he or anyone in the same state slaughters? Is it permissible to maintain ties and eat with him?

A: If the reality is as you mentioned, that your relative performs Salah and makes up what he misses from it, (Part No. 22; Page No. 372) it will be permissible to eat from the animals he slaughters and to have ties and eat with him.May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.